<template>
  <div>
    <!-- 三级联动：全局组件 -->
    <TypeNav />
    <div class="main">
      <div class="py-container">
        <!--bread-->
        <div class="bread">
          <ul class="fl sui-breadcrumb">
            <li>
              <a href="#">全部结果</a>
            </li>
          </ul>
          <ul class="fl sui-tag">
              <!-- 面包屑有可能有也有可能没有 -->
              <!-- 产品名字的按钮 -->
            <li class="with-x" v-show="searchParams.categoryName">{{searchParams.categoryName}}<i @click="clearcategoryName">×</i></li>
            <!-- 用户搜索关键字的按钮 -->
            <li class="with-x" v-show="searchParams.keyWord">{{searchParams.keyWord}}<i @click="clearkeyWord">×</i></li>
             <!--  -->
             <li class="with-x" v-show="searchParams.trademark">{{searchParams.trademark.split(":")[1]}}<i @click="clearTradeMark">×</i></li>
             <!-- 平台属性prop是个数组 -->
             <li class="with-x" v-for="(prop,index) in searchParams.props" :key="index">{{prop.split(":")[1]}}<i @click="clearProp(index)">×</i></li>
          </ul>
        </div>

        <!--selector-->
        <!-- selector： -->
        <SearchSelector  @getTradeMarkInfo="getTradeMarkInfo" @getAttrInfo="getAttrInfo"/>

        <!--details-->
        <div class="details clearfix">
          <div class="sui-navbar">
            <div class="navbar-inner filter">
              <ul class="sui-nav">
                <!-- 拥有类名active:背景将会变成红色 -->
                <li :class="{active:isComprehensive}" @click="changeOrder('1')">
                  <a >综合<span v-show="isComprehensive" class="iconfont" :class="{'icon-long-arrow-down':isDesc,'icon-long-arrow-up':isAsc}"></span></a>
                </li>
                <li :class="{active:isPrice}" @click="changeOrder('2')">
                  <a >价格<span v-show="isPrice" class="iconfont" :class="{'icon-long-arrow-down':isDesc,'icon-long-arrow-up':isAsc}"></span></a>
                </li>
                
              </ul>
            </div>
          </div>
          <div class="goods-list">
            <ul class="yui3-g">
              <li class="yui3-u-1-5"
              v-for="(good,index) in goodsList"
              :key="good.id"
              >
                <div class="list-wrap">
                  <div class="p-img">
                    <router-link :to="`/detail/${good.id}`">
                        <img :src="good.defaultImg" />
                    </router-link >
                  </div>
                  <div class="price">
                    <strong>
                      <em>¥</em>&nbsp;
                      <i>{{good.price}}.00</i>
                    </strong>
                  </div>
                  <div class="attr">
                    <a  :title="good.title">
                        {{good.title}}
                    </a>
                  </div>
                  <div class="commit">
                    <i class="command">已有<span>2000</span>人评价</i>
                  </div>
                  <div class="operate">
                    <a href="success-cart.html" target="_blank" class="sui-btn btn-bordered btn-danger">加入购物车</a>
                    <a href="javascript:void(0);" class="sui-btn btn-bordered">收藏</a>
                  </div>
                </div>
              </li>              
            </ul>
          </div>
          <!-- 分页器的部分 -->
          <Pagination :total="total" :pageSize="searchParams.pageSize" :pageNo="searchParams.pageNo" :continues="5"  @currentPage="currentPage"></Pagination>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
  import SearchSelector from './SearchSelector/SearchSelector';
  //辅助函数
 import {mapGetters} from 'vuex';
 import {mapState } from 'vuex';
  export default {
    name: 'Search',
    //响应数据
    data(){
        return{
           //收集带给服务器的参数，参数是可以变化的，响应式的
           //携带给的服务器参数
           searchParams:{
               category1Id:"",//一级分类的id
               category2Id:"",//二级分类的id
               category3Id:"",//分级分类的id
               categoryName:"",//产品的名字
               keyWord:"",//关键字
               props:[],//平台属性的选择参数
               trademark:"",//品牌参数
               //下面这三个参数：都有初始值
               order:"1:desc",//综合排序方式||价格--->升序排列
               pageNo:1,//获取第几页的数据，即默认即为第一个的数据
               pageSize:3,//每一页需要展示多条数据
           },
        };
    },
    components: {
      SearchSelector,
    },
    //生命周期函数
    beforeMount() {
        //再发请求之前，把携带给服务器参数整理好，携带给服务器
        //当路由跳转的时候，把home传递过来的query参数于params参数赋值给searchParams对象
        //Object.assion()合并对象
        // this.searchParams.category1Id = this.$route.query.category1Id;
        // this.searchParams.category2Id = this.$route.query.category2Id;
        // this.searchParams.category3Id = this.$route.query.category3Id;
        // this.searchParams.categoryName = this.$route.query.categoryName;
        // this.searchParams.keyWord = this.$route.params.keyWord;
        Object.assign(this.searchParams,this.$route.query,this.$route.params);
    },
    mounted() {
        this.getSearchList();
    },
    methods: {
        //获取搜索产品数据
        getSearchList(){
            this.$store.dispatch("getSearchList",this.searchParams);
        },
        //清除产品名字
        clearcategoryName(){
            //把数据清空
            this.searchParams.categoryName = '';
            //修改URL:当前search模块跳转到search,只不过是不再携带参数，
            //路由发生变化了,watch再监听路由的变化，会再一次发请求
            //清除路由当中的query参数，如果存在params参数应该带着，不应该删除
            if(this.$route.params){
               this.$router.push({name:'search',params:this.$route.params})
            }
        },
        //清除关键字
        clearkeyWord(){
           //清除关键字数据
           this.searchParams.keyWord = '';
           //路由跳转自己跳自己
            if(this.$route.query){
            this.$router.push({name:'search',query:this.$route.query});
            }
           //通知兄弟组件，把关键字清除-----全局事件总线$bus,
           //通知
           this.$bus.$emit("changeKeyWord");
        },
        getTradeMarkInfo(trademark){
          //整理参数
           this.searchParams.trademark = `${trademark.tmId}:${trademark.tmName}`
            //再一次发一次请求
            this.getSearchList();
        },
        //清除品牌的面包屑
       clearTradeMark(){
            this.searchParams.trademark = '';
             //再发一次请求
             this.getSearchList();
        },
        //获取自定义事件（子组件给父组件）平台属性信息
        getAttrInfo(attr,attrValue){
          let prop = `${attr.attrId}:${attrValue}:${attr.attrName}`;
          this.searchParams.props.indexOf(prop)==-1&&this.searchParams.props.push(prop)&&this.getSearchList()
        },
        //清除平台属性
        clearProp(index){
            this.searchParams.props.splice(index,1);
            this.getSearchList();
        },
        //排序的回调函数
        changeOrder(flag){
        //flag形参：用户点击综合或者价格时的标记
        //order默认初始值 综合 降序 1：desc
        let originFlag = this.searchParams.order.split(':')[0];
        let originSort = this.searchParams.order.split(':')[1];
        let newOrder = '';
        //盘断用户点击的是带背景颜色按钮
            if(originFlag==flag){
                 newOrder = `${originFlag}:${originSort=='desc' ?'asc' : 'desc'}`
            }else{
                //点击的时不带颜色的按钮
                newOrder = `${flag}:desc`
            }
            //携带给服务器参数
            this.searchParams.order = newOrder;
            this.getSearchList();
        },
        currentPage(pageNo){
          this.searchParams.pageNo = pageNo;
           this.getSearchList();
           //本地存储持久化
           localStorage.getItem(pageNo)
        }
    },
    computed:{
        ...mapGetters(["goodsList"]),
        //计算属性：是不是综合
        isComprehensive(){
            return  this.searchParams.order.indexOf('1') !=-1;
        },
        //计算属性是不是价格
        isPrice(){
            return this.searchParams.order.indexOf('2')!=-1;
        },
        //是不是降序
        isDesc(){
            return this.searchParams.order.indexOf('desc')!=-1;
        },
        //是不是升序
        isAsc(){
            return this.searchParams.order.indexOf('asc')!=-1;
        },
        ...mapState({
            total:state =>state.search.searchList.total
        })
    },
    //监听路由的变化
    watch:{
        //组件实例身上是有$route这个属性【包含路由信息】
        //只要路由发生变化，立即向服务器发请求
        $route(){
            //清除上一次发请求的id
            this.searchParams.category1Id = undefined;
            this.searchParams.category2Id = undefined;
            this.searchParams.category3Id = undefined;
            //先收集最新的搜索条件（再次整理参数），再次向服务器发请求
            Object.assign(this.searchParams,this.$route.query,this.$route.params);
            //再次发请求
            this.getSearchList();
        }
    }
  }
</script>

<style lang="less" scoped>
  .main {
    margin: 10px 0;

    .py-container {
      width: 1200px;
      margin: 0 auto;

      .bread {
        margin-bottom: 5px;
        overflow: hidden;

        .sui-breadcrumb {
          padding: 3px 15px;
          margin: 0;
          font-weight: 400;
          border-radius: 3px;
          float: left;

          li {
            display: inline-block;
            line-height: 18px;

            a {
              color: #666;
              text-decoration: none;

              &:hover {
                color: #4cb9fc;
              }
            }
          }
        }

        .sui-tag {
          margin-top: -5px;
          list-style: none;
          font-size: 0;
          line-height: 0;
          padding: 5px 0 0;
          margin-bottom: 18px;
          float: left;

          .with-x {
            font-size: 12px;
            margin: 0 5px 5px 0;
            display: inline-block;
            overflow: hidden;
            color: #000;
            background: #f7f7f7;
            padding: 0 7px;
            height: 20px;
            line-height: 20px;
            border: 1px solid #dedede;
            white-space: nowrap;
            transition: color 400ms;
            cursor: pointer;

            i {
              margin-left: 10px;
              cursor: pointer;
              font: 400 14px tahoma;
              display: inline-block;
              height: 100%;
              vertical-align: middle;
            }

            &:hover {
              color: #28a3ef;
            }
          }
        }
      }

      .details {
        margin-bottom: 5px;

        .sui-navbar {
          overflow: visible;
          margin-bottom: 0;

          .filter {
            min-height: 40px;
            padding-right: 20px;
            background: #fbfbfb;
            border: 1px solid #e2e2e2;
            padding-left: 0;
            border-radius: 0;
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);

            .sui-nav {
              position: relative;
              left: 0;
              display: block;
              float: left;
              margin: 0 10px 0 0;

              li {
                float: left;
                line-height: 18px;

                a {
                  display: block;
                  cursor: pointer;
                  padding: 11px 15px;
                  color: #777;
                  text-decoration: none;
                }

                &.active {
                  a {
                    background: #e1251b;
                    color: #fff;
                  }
                }
              }
            }
          }
        }

        .goods-list {
          margin: 20px 0;

          ul {
            display: flex;
            flex-wrap: wrap;

            li {
              height: 100%;
              width: 20%;
              margin-top: 10px;
              line-height: 28px;

              .list-wrap {
                .p-img {
                  padding-left: 15px;
                  width: 215px;
                  height: 255px;

                  a {
                    color: #666;

                    img {
                      max-width: 100%;
                      height: auto;
                      vertical-align: middle;
                    }
                  }
                }

                .price {
                  padding-left: 15px;
                  font-size: 18px;
                  color: #c81623;

                  strong {
                    font-weight: 700;

                    i {
                      margin-left: -5px;
                    }
                  }
                }

                .attr {
                  padding-left: 15px;
                  width: 85%;
                  overflow: hidden;
                  margin-bottom: 8px;
                  min-height: 38px;
                  cursor: pointer;
                  line-height: 1.8;
                  display: -webkit-box;
                  -webkit-box-orient: vertical;
                  -webkit-line-clamp: 2;

                  a {
                    color: #333;
                    text-decoration: none;
                  }
                }

                .commit {
                  padding-left: 15px;
                  height: 22px;
                  font-size: 13px;
                  color: #a7a7a7;

                  span {
                    font-weight: 700;
                    color: #646fb0;
                  }
                }

                .operate {
                  padding: 12px 15px;

                  .sui-btn {
                    display: inline-block;
                    padding: 2px 14px;
                    box-sizing: border-box;
                    margin-bottom: 0;
                    font-size: 12px;
                    line-height: 18px;
                    text-align: center;
                    vertical-align: middle;
                    cursor: pointer;
                    border-radius: 0;
                    background-color: transparent;
                    margin-right: 15px;
                  }

                  .btn-bordered {
                    min-width: 85px;
                    background-color: transparent;
                    border: 1px solid #8c8c8c;
                    color: #8c8c8c;

                    &:hover {
                      border: 1px solid #666;
                      color: #fff !important;
                      background-color: #666;
                      text-decoration: none;
                    }
                  }

                  .btn-danger {
                    border: 1px solid #e1251b;
                    color: #e1251b;

                    &:hover {
                      border: 1px solid #e1251b;
                      background-color: #e1251b;
                      color: white !important;
                      text-decoration: none;
                    }
                  }
                }
              }
            }
          }
        }

        .page {
          width: 733px;
          height: 66px;
          overflow: hidden;
          float: right;

          .sui-pagination {
            margin: 18px 0;

            ul {
              margin-left: 0;
              margin-bottom: 0;
              vertical-align: middle;
              width: 490px;
              float: left;

              li {
                line-height: 18px;
                display: inline-block;

                a {
                  position: relative;
                  float: left;
                  line-height: 18px;
                  text-decoration: none;
                  background-color: #fff;
                  border: 1px solid #e0e9ee;
                  margin-left: -1px;
                  font-size: 14px;
                  padding: 9px 18px;
                  color: #333;
                }

                &.active {
                  a {
                    background-color: #fff;
                    color: #e1251b;
                    border-color: #fff;
                    cursor: default;
                  }
                }

                &.prev {
                  a {
                    background-color: #fafafa;
                  }
                }

                &.disabled {
                  a {
                    color: #999;
                    cursor: default;
                  }
                }

                &.dotted {
                  span {
                    margin-left: -1px;
                    position: relative;
                    float: left;
                    line-height: 18px;
                    text-decoration: none;
                    background-color: #fff;
                    font-size: 14px;
                    border: 0;
                    padding: 9px 18px;
                    color: #333;
                  }
                }

                &.next {
                  a {
                    background-color: #fafafa;
                  }
                }
              }
            }

            div {
              color: #333;
              font-size: 14px;
              float: right;
              width: 241px;
            }
          }
        }
      }
    }
  }
</style>